WESTON INVESTMENT CO LLC
53 office properties in Portland / Multnomah County recorded to 3 owner entities mailing to 2154 NE BROADWAY #200, PORTLAND, OR. likely one owner
At a glance
WESTON INVESTMENT CO LLC is recorded as the owner of 53 office properties (53 parcels) in Portland / Multnomah County, totalling 2.2M sq ft of building area. The holdings sit in 3 owner entities that share one tax-bill mailing address in PORTLAND, OR — and a name root, which is how a single sponsor usually holds property.
County assessment roll
Properties
| Building | Submarket | Sq ft | Assessed | Last sold | Tenants |
|---|---|---|---|---|---|
| 1515 SW 5TH AVE | Portland | 314.7K | — | — | 0 |
| 1220 SW MORRISON ST | Portland | 223K | — | — | 0 |
| 2100 S RIVER PKWY | Portland | 192.5K | — | $13,650,267 · Jul 2023 | 0 |
| 847-919 NE 19TH AVE | Portland | 125.2K | — | $17,534,770 · Oct 2006 | 0 |
| 11826 NE GLISAN ST | Portland | 117.3K | — | $6,000,000 · Oct 2014 | 0 |
| 1020 SW TAYLOR ST | Portland | 105.4K | — | — | 0 |
| 1410 SW MORRISON ST | Portland | 101.1K | — | — | 0 |
| 1425-1435 NE IRVING ST | Portland | 96.2K | — | $28,000,000 · Sep 2017 | 0 |
| 1405 SW MORRISON ST | Portland | 80K | — | — | 0 |
| 9320 SW BARBUR BLVD | Portland | 75.8K | — | — | 0 |
| 1805 NE SANDY BLVD | Portland | 72.1K | — | — | 0 |
| 5319 SW WESTGATE DR | Portland | 65K | — | — | 0 |
| 6500 S MACADAM AVE | Portland | 63.2K | — | — | 0 |
| 2121 SW BROADWAY DR | Portland | 51.6K | — | — | 0 |
| 6420 S MACADAM AVE | Portland | 50.2K | — | — | 0 |
| 305 NE 102ND AVE | Portland | 47.1K | — | — | 0 |
| 1750 SW SKYLINE BLVD | Portland | 36.6K | — | — | 0 |
| 1550 NW EASTMAN PKWY | Gresham | 35.9K | — | — | 0 |
| 10560-10588 SE WASHINGTON ST | Portland | 33.2K | — | — | 0 |
| 2951-2955 NW DIVISION ST | Gresham | 31.3K | — | $1,515,227 · Nov 2004 | 0 |
| 1785 NE SANDY BLVD | Portland | 30.5K | — | $3,676,382 · Aug 2008 | 0 |
| 1827 NE 44TH AVE | Portland | 29.8K | — | — | 0 |
| 4610 SE BELMONT ST | Portland | 29.4K | — | — | 0 |
| 10615 SE CHERRY BLOSSOM DR | Portland | 23.2K | — | $3,000,000 · Nov 2007 | 0 |
| 10725 SW BARBUR BLVD | Portland | 20.8K | — | — | 0 |
| 1730 SW SKYLINE BLVD | Portland | 20.6K | — | — | 0 |
| 1825-1839 NE GLISAN ST | Portland | 18.1K | — | — | 0 |
| 4425 NE BROADWAY | Portland | 17.4K | — | — | 0 |
| 2154-2168 NE BROADWAY | Portland | 13.4K | — | — | 0 |
| 2950 SE STARK ST | Portland | 13.2K | — | — | 0 |
| 4300 NE FREMONT ST | Portland | 12.1K | — | — | 0 |
| 2410 SE 121ST AVE | Portland | 11.5K | — | — | 0 |
| 3716-3726 NE M L KING BLVD | Portland | 10.3K | — | — | 0 |
| 1911 NE BROADWAY | Portland | 5.2K | — | — | 0 |
| 1001-1007 NE BROADWAY | Portland | 4.8K | — | — | 0 |
| 3020-3022 NE GLISAN ST | Portland | 4.5K | — | — | 0 |
| 2900 SE STARK ST | Portland | 3.9K | — | — | 0 |
| 421-439 N BROADWAY | Portland | 3K | — | — | 0 |
| 2944-2948 NE GLISAN ST | Portland | 1.4K | — | — | 0 |
| 1401 SW YAMHILL ST | Portland | 748 | — | — | 0 |
| 1425 WI/ NE IRVING ST | Portland | — | — | $28,000,000 · Sep 2017 | 0 |
| 847 WI/ NE 19TH AVE | Portland | — | — | $17,534,770 · Oct 2006 | 0 |
| SW SKYLINE BLVD | Portland | — | — | — | 0 |
| 1425-1435 WI/ NE IRVING ST | Portland | — | — | $28,000,000 · Sep 2017 | 0 |
| 1730 WI/ SW SKYLINE BLVD | Portland | — | — | — | 0 |
| 825 NE 20TH AVE | Portland | — | — | — | 0 |
| 3880 SE 8TH AVE | Portland | — | — | $1,450,000 · Nov 2005 | 0 |
| 1785 WI/ NE SANDY BLVD | Portland | — | — | $3,676,382 · Aug 2008 | 0 |
| 3716-3726 WI/ NE M L KING BLVD | Portland | — | — | — | 0 |
| 919 WI/ NE 19TH AVE | Portland | — | — | $17,534,770 · Oct 2006 | 0 |
| 2410 WI/ SE 121ST AVE | Portland | — | — | — | 0 |
| 1730 WI/ NE 10TH AVE | Portland | — | — | — | 0 |
| 10725 WI/ SW BARBUR BLVD | Portland | — | — | — | 0 |
Names on the deeds
Owner entities at this address
- WESTON INVESTMENT CO LLC
- WESTON INVESTMENT CO
- OCF JOSEPH E WESTON PUBLIC FOUNDATI
How this group was built. These entities share both a mailing address and a name root, which is how a single sponsor usually holds property — one entity per building.The county records an owner and a mailing address for every parcel; this page collects the office parcels whose owners mail to the same address, and counts buildings rather than parcels using the county's own condo-to-building link. Lease terms, rents and the identity of a manager acting for the owner are not public records and are not shown.
Where are WESTON INVESTMENT CO LLC's office buildings?
The 53 properties are spread across 2 cities, led by Portland (51), Gresham (2).
The largest is 1515 SW 5TH AVE in Portland at 314.7K sq ft over 10 floors.
Recorded build years run from 1906 to 2002.
How large is this portfolio within Portland's office market?
Its 2.2M sq ft is 3.48% of the 63M sq ft of office building area on the Portland / Multnomah County roll.
It holds 53 of the metro's 2,917 office buildings.
13 of its parcels carry a recorded sale price; the most recent was 2100 S RIVER PKWY in Jul 2023 for $13,650,267.
Frequently asked questions
How many office buildings does WESTON INVESTMENT CO LLC own in Portland?
53 office properties (53 parcels) on the Portland / Multnomah County roll, counted by building rather than by condo parcel.
What is WESTON INVESTMENT CO LLC's largest office building?
1515 SW 5TH AVE, Portland — 314.7K sq ft.
Are these properties owned by one company?
These entities share both a mailing address and a name root, which is how a single sponsor usually holds property — one entity per building. 3 owner entities share the mailing address. It is evidence of common ownership, not proof of it.
When did one of WESTON INVESTMENT CO LLC's Portland office properties last change hands?
The most recent recorded transfer among these parcels is 2100 S RIVER PKWY, Jul 2023, for $13,650,267.
Related
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Portland / Multnomah County — Regional taxlot service (owner names, mailing addresses, floors, building areas, and the last recorded sale with price). Oregon publishes no bulk transaction history and Portland no business-licence roll, so sales are last-per-parcel and no tenant layer exists.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
Dataset updated . Derived from public data sources.
About this data
Source: Regional taxlot service (Portland / Multnomah County), as published September 21, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “WESTON INVESTMENT CO LLC — Portland office property holdings”, https://buildingcensus.com/offices/portland/owners/weston-investment-co-llc-d34d51 (data as of September 21, 2026).